sntg-p / quickjs-raylib Goto Github PK

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Enjoy developing native videogames with JavaScript.

C 86.35% JavaScript 1.04% Makefile 0.59% TypeScript 12.01%

quickjs-raylib's Introduction

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kaosat-dev

quickjs-raylib's Issues

Compiling on windows?

Is there any way to compile this on windows? What tools are needed?

Doesn't work with latest Raylib

I really wanted to try this, but in newer versions of raylib, the function:

Image GenImageFontAtlas(const CharInfo *chars, int charsCount, int fontSize, int padding, int packMethod)

became:

Image GenImageFontAtlas(const CharInfo *chars, Rectangle **charRecs, int charsCount, int fontSize, int padding, int packMethod)

and CharInfo lost the rec pointer.

I assume they're correlated in some way, but It would be good to have a link to what specific commit of raylib works.

I get an error that QuickJS can't load the library

ReferenceError: could not load module filename 'lib/qjs-raylib/native/qjs-raylib.so' as shared library

Hi,
I am interested in raylib & javascript, and getting it to run well on a pi0. I tried out node-raylib, and it works pretty well, but not on mac, (which would be great for dev before deploying to pi) and I also have a feeling quickjs would run even better.

Is there anything you'd like help with, in particular? I'm not a strong C programmer, but I have some experience, and I am very experienced with js. I see your TODOs, but I'm not sure if it's up-to-date, or if you're still working on this.

When I see things like big APIs and wrappers, I start thinking of code-generation. I have written a few, in various languages. Maybe we could do something with swig? It has an XML output you can use to generate wrappers for other languages, and I have seen a couple swig wrappers for raylib (seem lua-focused, but the interface-definitions should work ok to generate XML, which we can use to generate C for quickjs.) I also think there aren't a lot of types (basically a handful of structs) and a lot of defines & functions, that all essentially look the same, so it may be feasible to just do it directly in some JS code. nm -D seems useful for dumping the exports from a C lib, but the headers might be more useful for generating the calling-signatures.

I tried a first stab at regex and it seemed to do the trick for the function-definitions, complete with comments. I left the params as a string because they can just be split by , in another pass. We could maybe do similar for the defines & structs, too.

Based on your code, it seems like there are some kinda simple rules:

structs get turned into classes, with members that are basic scalars & getters/setters
scalar method params work by defining a compatible var, calling the quickjs converter to put it in memory, and calling the original, then returning a converted copy of original return, which is often void (JS_UNDEFINED.) Do you know if this has memory-leaks? I don't know how to check, but it seems like it might.

So this (picked at random):

RLAPI bool IsGamepadButtonUp(int gamepad, int button);                   // Check if a gamepad button is NOT being pressed

would pull this:

{
  "return": "bool",
  "name": "IsGamepadButtonUp",
  "params": [
    "int gamepad",
    "int button"
  ],
  "comment": "Check if a gamepad button is NOT being pressed"
}

which would translate to this in quickjs C:

static JSValue wrapped_IsGamepadButtonUp(JSContext* ctx, JSValueConst this_val, int argc, JSValueConst* argv) {
	int gamepad;
	if (JS_ToInt32(ctx, &gamepad, argv[0])) return JS_EXCEPTION;
        
        int button;
        if (JS_ToInt32(ctx, &button, argv[1])) return JS_EXCEPTION;

	return JS_NewBool(ctx, IsGamepadButtonUp(gamepad, button));
}

// later in JSCFunctionListEntry
JS_CFUNC_DEF("isGamepadButtonUp", 2, wrapped_IsGamepadButtonUp);

Does that sound right? Do you have interest in an auto-generator like this?

sntg-p / quickjs-raylib Goto Github PK

quickjs-raylib's Introduction

QuickJS + raylib

Progress

Disclaimer

Requirements

Installation

quickjs-raylib's People

Contributors

Stargazers

Watchers

Forkers

quickjs-raylib's Issues

Compiling on windows?

Doesn't work with latest Raylib

I get an error that QuickJS can't load the library

I'd like to help

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